I am curious how to make multi-floral Paphs (rothschildianum, philippinense) bloom. Is there a trick that would make them grow flower spikes?
Thanks!
Time. They may not reach blooming size for 10-15 years from flask or even more. So if you acquire a young plant (one that hasn't already bloomed), it's important that YOU be young enough to wait it out.
I was going to say something similar. A "seedling" roth is like HUGE! It's the size of full grown orchids. So I think the first thing you should do if you can is to contact the seller to ask if he/she knows how old it is.